/*
 *  fx/ParticleFX.h
 *
 *  Copyright 2009 Peter Barth
 *
 *  This file is part of Milkytracker.
 *
 *  Milkytracker is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  (at your option) any later version.
 *
 *  Milkytracker is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with Milkytracker.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef PARTICLEFX__H
#define PARTICLEFX__H

#include "FXInterface.h"
#include "Math3d.h"

class ParticleFX : public FXInterface
{
    protected:
        struct Particle
        {
            VectorFP pos;
            VectorFP direction;
            int size;
            int grow;
            unsigned short* texture;
            int textureWidth, textureHeight;
        };

        struct Sprite
        {
            int tx, ty;
            int xsize, ysize;
            int xres, yres;
            int xoffset, yoffset;
            unsigned short zval;
            int flags;
            int shade;
            unsigned int texturexres;
            unsigned short* texture;
        };

        int FOV;
        int zOffset;

        Particle* particles;
        unsigned int numParticles;

        MatrixFP rotMatrix;
    public:
        ParticleFX (int width, int height, int numParticles, int FOV = -1);
        virtual ~ParticleFX ();

        virtual void render(unsigned short* vscreen, unsigned int pitch);
        virtual void update(float syncFrac) = 0;

        void setFOV(int FOV) {
            this->FOV = FOV;
        }
        void setZOffset(int zOffset) {
            this->zOffset = zOffset;
        }
        void setMatrix(MatrixFP& matrix) {
            rotMatrix = matrix;
        }
        MatrixFP getMatrix() {
            return rotMatrix;
        }

        static void drawSprite(unsigned short* buffer, int XMAX, int YMAX, int PITCH, Sprite* spr);

};

#endif